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Quinn science K3

Elements, Compounds, and Mixtures

QuestionAnswer
element a pure substance that cannot be separated or broken down into simpler substances by physical or chemical means
pure substance a substance in which ther eis only one type of particle
metals elements that are shiny and are good conductors of thermal energy and electric current; most metals are malleable and ductile
nonmetal elements that are dull and are poor conductors of thermal energy and electric current
metalloid elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors
compound a pure substance composed of two or more elements that are chemically combined
mixture a combination of two ore more substances that are NOT chemically combined
solution a mixture that appears to be a single substance but is composed of particles of two or more substances that are distributed evenly amongst each other
solute the substance that is dissolved to form a solution
solvent the substance in which a solute is dissolved to form a solution
concentration a measure of the amount of solute dissolved in a solvent
solubility the ability to dissolve in another substance; more specifically, the amount of solute needed to make a saturated solutin using a given amount of solvent at a certain temperature
suspension a mixture in which particles of a material are dispersed throughout a liquid or gas but are large enough that they settle out
colloid a mixture in which the particles are dispersed throughoutbut are not heavy enough to settle out
homogeneous mixture a combinations of substances in which different the appearance and properties are the same throughout
heterogeneous mixture a combinations of substances in which different components are easily observed
dissolving process in which particles of substances separate and spread out evenlly throughout a mixture
soluble able to disolve in a solvent
insoluble unable to disolve in a solvent
concentrated contains more solute than a dilute solution
dilute contains less solute than a concentrated solution
saturated solution a solution that contains all the solute it can hold at a given temperature
unsaturated solution a solution that contains less solute that it can hold at a given temperature
three properties of mixtures substances retain their identity, can be physically seperated, and components do not have a definite ratio
ways to break down a compound heating or electrolysis
ways to make a solute dissolve faster mixing, heating, and crushing
common ways to separte mixtures distillation, magnet, and centrifuge
Created by: cquinnd15.org